I actually think the PS4 iteration of the Iron Spider suit could transfer very well into being diecast. It honestly might be the only way to do it, given how the suit is arranged. A lot of Spidey suits these days are already limited by being made of fabric, so the argument of restricted poseability doesn't really work. In the case of the PS4 Iron Spider, it already has clean breaks at the knee, elbow, wrist, and torso sections. You could very easily make similar breaks along where the shoulders are as well. Hell, the way that the spider logo wraps around and protrudes out from the chest in that suit, splitting it might be the only way you could give that area any articulation at all, even in a non-diecast suit.